Valve



June 17, 1930- 'A. c. HOUGLAND VALVE Filed Jan. l1, 1928 @1t-touting y2o sure and vat.

Patented June 1-7, 1930 UNITED STATES ALBERT c. HOUGLAND, E sfr. PAUL,MINNESOTA, AssiGNoR To CRANE COMPANY- oE y MINNESOTA, or sr. PAUL,MINNEsoTA,y A coEronAmoN, or MINNESOTA vALjvE y i It is the object ofthis invention to provide a valve in which the closure is substantiallyflush with an end of the casing or conduit so that fluid contents of acontainer in communication with said end are excluded from the valvecasing and connections.

One important use of my valve is upon the large or commercialpasteurizers for milk and cream. In such apparatus a large vat isprovided in which the heat treatment of the liquid is conducted. ing theliquid fromy the vat, after pasteurization, suitable piping is connectedto the bottom of the vat and a drain'valve is located in the piping.Heretofore the drain valves have been so constructed and located as toallow a substantial amount of theV lactic fluid to enter the valvecasing or restricted connections between the valve clo- It has beenfound that the liquid within this restricted space or valve. casingduring the pasteurizing treatment is not heated to the temperaturenecessary to destroy pathogenic bacteria and subsequent ly pollutes theentire body of fluid. The present invention is designated primarily toavoid this defect in old valves.

Referring to the accompanying drawings which illustrate the best form ofmy device at present known to me Figure 1 is a plan view of my improvedlvalve partially in horizontal section; F ig.'2 is a central verticalsection through the valve attached to a vat of common type and Fig. 3 isan inner end view of the valve and attaching plate. In the drawings Ihave used the numeral 4 to indicate a straight tubular member of v thevalve casing which is formed with a conical valve seat 5 at its normallyinner end. An intake opening 6 is located centrally adjacent to thevalve seat 5. A closure 7 is formed to lit the seat 5 being iixed uponan end of an operating rod 8. This rod 8 extends axially through themember 4 and also through a member 9 of the casing arranged incontinuation of the member 4. The outer end of the member 9 is closed bya cap 10 having a central bore through which the rod 8 passes and athreaded neck 11 adapted to engage threads 12 on the rod To facilitatedrain- 8. Anend of the rod 8 projects beyond the threadsf12 and isiittedwith a'suitableoperating wheel lfor turning said' rod and for sliding itlongitudinally through the cap 10.

A retainingnut 14 is `arranged tosecur'e the cap 10 inthe end of thepart 9. To prevent leakage along vthej'rod 8 through the cap 10 apackingnut' 15 is threaded in ther inner surface of the cap 1() and arranged tocom; press suitable stuffing 1G against said' rod. Communicating withthe memberlQ of the valve casing is a pair ofl branch pipes 17 adaptedto be connected with suitable'hoses orv other conduits through whichtheHuid maybe passed. g 1- f In Fig. 2'1 have shown the valve attached to avat having a bottom 18 and an end 19 from which the fluid is to bewithdrawn. To connectl the valvewith such `apvat an internally threadedcollarf20 is secured lup on the inner surfaceof the endf19jand vanexternally threaded disc y21 ils/screwed into the collar 20. Athreadedopening 22 in the disc 21 is disposed eccentrically'in 'saiddisc and` adapted to receive a threaded inner end ofthe casing member 4.This opening 2.2 is offset from the 'center' of .they disc 21 downwardandv arecess'v 23`is formed in the bottom 18 of the vat so-as tofacilitatewithdrawing the entire contents ofthe vat.y :To afford a firmsupport for the valveluponthe exterior of the end.19 aiplate 24 adaptedto be secured to said endis provided with an opening` to! receive thevalve member 24. This plate has perforated ears 25 to receive attaching.screws or bolts. l

Thevalve casing is made in two-members 4 and 9. to facilitate properlpositioning of the branch pipes 17 after the member 4 has beensecured.in theydisc21. The members 4 and 9 are coupled together by means'of asleeve 26 which is threaded upon the leasing memberv 9. an'dvformed toengage an annular shoulder. 27 .upon the outer end of the casing'member4.

In use the valve closure 7 is normally held upon its seat 5 by thethreads 12 engaging the neck 11. It will be evident that the closure ofthe opening 6 is substantially flush with the inner end of the valvecasing so that fluid in the vat is not allowed to enter the valvecasingor connections. When the valve is to be opened the wheel 13 ismerely rotated, to disengage the threads 12 upon the rod 8, when saidrod is withdrawn longitudinally to carry the closure 7 past the branchpipe 17 as indicated in dotted lines in Figs. l and 2. This operation isfacilitated by my arrangement of a short thread 12 for seating thevalve. Obviously to close the valve it is onlynecessary to slide the rod8 inward to a point where the threads` 12 will engage the neck 11 andthen to rotate the Wheel 13 until the closure 7 is firmly seated.Another important feature of my valve is the arrangement whichfacilitates cleaning. To clean the valve the screw cap 13 is merelyremoved. This frees the part 10, valve closure and operating rod andwheel so that these parts may be withdrawn from the valve casing quicklyand easily. With Vthe valve closure and operating mechanism removed thecasing affords a straight, unobstructed passageway for the insertion orcleaning brushes or the like.

Having described my invention what I claim is new and desire to protectby Letters Patent is: y -K In a valve, a casing, a straight tubularmember of said casing adapted to extend through the wall ofra vat or thelike and formed with an opening in its inner end, an internal valve seatformed on said end around said opening, a closure arranged to removablyfit said seat, a second tubular member of said casing disposed incontinuation of said rst mentioned member, a coupling between saidmembers having a sleeve revoluble independently of said members topermit rotation of said second member independently of said firstmentioned tubular member, said coupling being located outside of saidvat and said members having a smooth, continuous bore withoutobstruction, an operating rod for said closure extending axially throughboth members of said casing and arranged to draw said closure from oneend to the other of said casing, a removable cap on the outer end ofsaid second member, a laterally projecting conduit communicating withsaid second member of the casing and means associated withsaidvoperating rod Vfor retaining said closure on its seat, said closureand rod being removable through the casing upon the removal of said cap.f

In testimony whereof, I have hereunto signed my name to thisspeciication.

ALBERT C. HOUGLAND.

